diff --git a/deploy/atlas/index.js b/deploy/atlas/index.js
index abcaf3c219e1638591322ec1b8aabd70370b0f7b..da353ffa3e830fdf885911693b8520ddfe22d89e 100644
--- a/deploy/atlas/index.js
+++ b/deploy/atlas/index.js
@@ -9,7 +9,7 @@ const HOST_PATHNAME = process.env.HOST_PATHNAME || ''
 const { getTemplate } = require('../templates/query')
 const { getHandleErrorFn } = require('../util/streamHandleError')
 
-const getPreviewFn = ({ res, lastpart }) => HOSTNAME.replace(/\/$/, '') + '/' +
+const getPreviewFn = ({ res, lastpart }) => HOSTNAME.replace(/\/$/, '') + 
   HOST_PATHNAME.replace(/\/$/, '') + '/' +
   (res.locals.routePathname
     ? url.resolve(`${res.locals.routePathname}/`, lastpart)